1 环境搭建总体目标
2 创建工程
2.1项目架构图
2.2工程创建计划
hejinjie01-admin-parent
<artifactId>hejinjie01-admin-parent</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
hejinjie-02-admin-webui
<parent>
<artifactId>hejinjie01-admin-parent</artifactId>
<groupId>com.hejinjie</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<packaging>war</packaging>
<artifactId>hejinjie-02-admin-webui</artifactId>
hejinjie03-admin-component
<parent>
<artifactId>hejinjie01-admin-parent</artifactId>
<groupId>com.hejinjie</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<packaging>jar</packaging>
<artifactId>hejinjie03-admin-component</artifactId>
hejinjie04-admin-entity
<parent>
<artifactId>hejinjie01-admin-parent</artifactId>
<groupId>com.hejinjie</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<packaging>jar</packaging>
<artifactId>hejinjie04-admin-entity</artifactId>
hejinjie05-common-util
<parent>
<artifactId>hejinjie01-admin-parent</artifactId>
<groupId>com.hejinjie</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<packaging>jar</packaging>
<artifactId>hejinjie05-common-util</artifactId>
hejinjie-06-common-reverse
<parent>
<artifactId>hejinjie01-admin-parent</artifactId>
<groupId>com.hejinjie</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<packaging>jar</packaging>
<artifactId>hejinjie-06-common-reverse</artifactId>
3 创建数据库和数据库表
创建数据库
CREATE DATABASE project_crowd CHARACTER SET utf8
创建管理员数据库表
create table t_admin ( id int not null auto_increment, # 主键 login_acct varchar(255) not null, # 登录账号 user_pswd char(32) not null, # 登录密码 user_name varchar(255) not null, # 昵称 email varchar(255) not null, # 邮件地址 create_time char(19), # 创建时间 primary key (id) );
4 基于 Maven 的 MyBatis
4.1.pom配置
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>hejinjie01-admin-parent</artifactId>
<groupId>com.hejinjie</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<packaging>jar</packaging>
<artifactId>hejinjie-06-common-reverse</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<!-- 依赖 MyBatis 核心包 -->
<dependencies>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>
</dependencies>
<!-- 控制 Maven 在构建过程中相关配置 -->
<build>
<!-- 构建过程中用到的插件 -->
<plugins>
<!-- 具体插件，逆向工程的操作是以构建过程中插件形式出现的 -->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.0</version>
<!-- 插件的依赖 -->
<dependencies>
<!-- 逆向工程的核心依赖 -->
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.2</version>
</dependency>
<!-- 数据库连接池 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.2</version>
</dependency>
<!-- MySQL 驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>
4.2 generatorConfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<!-- mybatis-generator:generate -->
<context id="hejinjieTables" targetRuntime="MyBatis3">
<commentGenerator>
<!-- 是否去除自动生成的注释 true:是;false:否 -->
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->
<jdbcConnection
driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/project_crowd?serverTimezone=UTC"
userId="root"
password="123">
</jdbcConnection>
<!-- 默认 false，把 JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true 时把
JDBC DECIMAL
和 NUMERIC 类型解析为 java.math.BigDecimal -->
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- targetProject:生成 Entity 类的路径 -->
<javaModelGenerator targetProject=".\src\main\java"
targetPackage="com.hejinjie.crowd.entity">
<!-- enableSubPackages:是否让 schema 作为包的后缀 -->
<property name="enableSubPackages" value="false" />
<!-- 从数据库返回的值被清理前后的空格 -->
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- targetProject:XxxMapper.xml 映射文件生成的路径 -->
<sqlMapGenerator targetProject=".\src\main\java"
targetPackage="com.hejinjie.crowd.mapper">
<!-- enableSubPackages:是否让 schema 作为包的后缀 -->
<property name="enableSubPackages" value="false" />
</sqlMapGenerator>
<!-- targetPackage：Mapper 接口生成的位置 -->
<javaClientGenerator type="XMLMAPPER"
targetProject=".\src\main\java"
targetPackage="com.hejinjie.crowd.mapper">
<!-- enableSubPackages:是否让 schema 作为包的后缀 -->
<property name="enableSubPackages" value="false" />
</javaClientGenerator>
<!-- 数据库表名字和我们的 entity 类对应的映射指定 -->
<table tableName="t_admin" domainObjectName="Admin" />
</context>
</generatorConfiguration>
